Brick kiln



e 3 Sheets Sheet 1. F. L. HALL.

BRICK KILN. i

Patented Get. 30, 1883.

(No Model.)

(No Medel.) 8 sheets-sheer. 2.

F. L. HALL.

BRICK KILN.

Ne. 287,482. A Peteneed'o 1.. 8o, 1888.

WITESSES I VEA/TOR 'S E .Attorney/S* N. PETERS. PnowLvmogmphm. wnsningom D. c

(No Model.) y 3 sheets-sheet s.

F. L. HALL. BRICK KILN.

No. 287,432. Patented Oct. 30, 1883.'

IJV VEA/Toa Attorney/5* UNITED STATES PATENT OFFICE..y

FRANCIS L. HALL,` oF ONEIDA, NEW YORK.

BRICK-KILN.

SPECIFICATION forming part of Letters Patent No. 287,432, dated October 30, 1883.

Application filed May 4,1883. (No model.)

To aZZ whom bmcty concern:

Be it known that I, FRANCIS L. HALL, a citizen ofthe United States, residing at Oneida, in the county of Madison and State of New York, have invented certain new and useful Improvements in Brick-Kilns; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to kilns for burning brick; and the novelty consists in the construction and arrangement, and in the adaptation of parts, as will be more fully hereinafter set forth, and specic-ally pointed out in the claims. v v The objects, among others, of the invention may be said to be, in general, to provide a kiln which shall allow the operator -to obtain the best results from a given quantity of fuel, and to moderate the heat; to simultaneously modify the ilow of products of combustion and supply oxygen to further consume such products; to conveniently supply additional fuel and combustion when it is indicated by the condition of the kiln, and to provide a device which shall be efficient in service and simple and easy of operation.

To these ends the invention consists in the arrangements illustrated in the accompanying drawings, which form a part of this specification, and in which* Figure 1 is a perspective view of the outside of a kiln or kiln-case. Fig. 2 is a front elevation with the case removed, the permanent floor or body of the kiln being in section. Fig. 8 is a horizontal section through the line x x of Fig. 2, and Fig. 4 a similar view on the line y y, same figure. f

Referring to the drawings, in which similar letters of reference indicate like parts in all the figures, A represents the permanent oor or body of the kiln, in which masonry is built the furnaces B, each of which has upon either side a hot-air chamber, b', formed by abridge wall, b, the connection between the two being at the rear of 'the furnace. The kiln of green brick is built upon this floor A, having' an arch, D, built over each hot-air chamber 1g', the two being connected byaseries of apertures, b2, formed in a horizontal partition, b3. It will thus be observed that each furnace supplies two arches of the green kiln with its products of combustion.

C represents a slide 4having perforations which correspond with the apertures b2, and which may be forced in either direction, to close or partially close the same bymeans of the door C, which is detachably secured to the slide, and which forms a tight joint, al'

cient grate to convert each arch D into an auxiliary furnace for the reception of wood to supply any minus quantity of heat to the kiln. It will further be observed that in case unconsumed fuel-such as smoke and gas`is passing into the arches D, the slide and door being pulled outward,the fl/ow of such unconsumed fuel is partially stopped, and lat the same time sufficient oxygen is admitted to allow the consumption of such as is passing into the arches. .t

The kiln is formed, preferably, with furnaces on opposite sides, and in other respects in the ordinary manner.

The points of importance in this invention lie, chiefly, in,rst, the arrangement of arches D, hot-air flues b', and furnaces; second, in the detachably-connected slides C kand doors C; and, third, in the arches D, serving as auxiliary furnaces. In these features modifica= tions may be made in details of construction without departing from the principle or sacri ficingthe advantages of my invention, the op eration 'of which will be readily understood from the foregoing description, taken in connection with the drawings.

Having thus fully described the invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

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1. In lcombination with the furnaces hav- 3. In a brick-kiln, and in combination with ing return-fines b, and the base A, having parl the furnaces formed in the permanent part 15 tition b, with draft-apertures b2, connecting. thereof,with partitions to formheat-iiues upon said furnaces with the arches D, a perforated either side of each furnace, the arches D, 5 slide, as C', and means for operating it,Whereformed in the unbnrned kiln, and adapted to by each arch D is formed into an auxiliary furconnect with said heat-fines, as specified.

nace, as set forth. y In testimony whereof I affix my signature in 2o 2. In combination with the furnace having presence of two witnesses.

l i i return-flue b ,the a1 ches D, and the pel forated A FRANCIS L HALL.

repartition b3, the slide C', having` corresponding perforations, and the door C, detachably IVitnesses: connected therewith, as and for the purposes T. E. BARNES, set forth. PAGE BARNES. 

